A new post on Google’s Chromium blog shares the results of the latest Chrome performance benchmarks, including record scores in tests run on an M5 MacBook Pro. Here are the details.
Google Chrome reaches record performance on Mac
Last June, Google published a post on their Chromium blog showing how Chrome’s Speedometer 3.1 benchmark score had improved in recent versions of the browser, from Chrome 128 to Chrome 139 dev, based on testing on an M4 macbook pro running macOS 15.
The Speedometer benchmark, as Google explains, “is created in open collaboration with other browsers and measures the responsiveness of web applications across workloads that cover a wide variety of different areas of the Blink rendering engine used in Chrome.”
These areas include HTML parsing, JavaScript and JSON processing, and pixel rendering, among others.
This week Google saying Chrome hit a new record of 61 on Speedometer 3.1 in a MacBook Pro M5 running macOS 26.0.1, a 5% increase over the previous year’s baseline results.
The company also shared its latest results for the JetStream 3 benchmark, which “is a set of JavaScript and WebAssembly benchmarks focused on advanced web applications,” according to BrowserBench.
JetStream 3.0 was announced in March and, like Speedometer 3.1, was developed as a collaborative effort involving engineers working on the leading JavaScript and WebAssembly engines, with contributors from Apple, Google, Mozilla, and other companies.
In the JetStream 3 benchmark, Chrome scored 469 points in a MacBook Pro M5 running macOS 26.0.1. The company touted the result as a 10% improvement over another test conducted “just earlier this year.”
According to Google, these results “directly translate into a significantly faster experience for our users.”
Chromium’s post delves into recent improvements and test results for JavaScript, WebAssembly, and its rendering engine, and you can read it in its entirety. here.
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